Internal - Bubble Cooling

The numerical results suggest that Internal Bubble Cooling (IBC) equipment introduces distinctive design and operation challenges. ResearchGate Digital Internal Bubble Cooling - Addex Inc.

In a standard blown film process, molten plastic is extruded through a circular die to form a tube, which is then inflated into a bubble. IBC systems add a sophisticated air-exchange loop inside this tube: INTERNAL BUBBLE COOLING

As this air touches the hot plastic (molten polymer), it absorbs heat. The numerical results suggest that Internal Bubble Cooling

Fresh, often chilled air is blown into the center of the die to inflate the bubble. it absorbs heat. Fresh

A dedicated exhaust pipe, usually located in the middle of the die, pulls the warm air out.

Numerical Study of Internal Bubble Cooling (IBC) in Film Blowing